York MAXE YST, Схема подключения

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JOHNSON CONTROLS
10
FORM 160.67-PW2 (1007)
selected, the "Remote Analog Input Range" setpoint is
set for "2-10VDC" and the Microboard Program Jumper
JP24 has been removed. Calculate the setpoint for various
inputs as follows:
OFFSET (
°
F) = (VDC - 2)(Remote Reset Temp. Range)
8
SETPOINT (
°
F) = Local Se Offset
For example, if the input is 5VDC and the Remote Reset
Temp. Range Setpoint is programmed for 40
°
F, the setpoint
would be set to 43.8 ° F.
OFFSET (F) = (5 - 2)(10)
8
= (3)(10)
8
= 30
8
SETPOINT ( ° F) = 40 + 3.8
= 43.8 ° F
SIGNAL
COMMON
5
4
+
J22
LD04501
FIG. 13 – REMOTE LEAVING CHILLED LIQUID TEMP.
SETPOINT WITH 0-20mA OR 4-20mA SIGNAL
0-20mA - As shown in FIG. 13, connect input to Microboard
J22-4 (signal) and J22-5 (gnd). A 0mA signal produces a 0
°
F
offset. A 20mA signal produces the maximum allowed offset
(10 or 20
°
F above the local setpoint value). The setpoint is
changed linearly between these extremes as the input varies
over the range of 0-20mA. This input will only be accepted
when
"Analog" Remote Mode is selected, the "Remote
Analog Input Range" setpoint is set for "0-10VDC" and
microboard Program Jumper J24 has been placed on pins 1
and 2. calculate the setpoint for various inputs as follows:
OFFSET (°F) = (mA)(Remote Reset Temp. Range)
20
SETPOINT (°F) = Local Se Offset
For example, if the input is 8mA, the Remote Reset Temp.
Range Setpoint is programmed for 10
° F and the Local Leav-
ing Chilled Liquid Temperature setpoint is programmed for
40
°
F, the setpoint would be set to 44
°
F as follows:
OFFSET (F) = (8)(10)
20
= (80)
20
= 4F
SETPOINT (F
°
) = 40 + 4
= 44 ° F
4-20mA - As shown in FIG. 13, connect input to Microboard
J22-4 (signal) and J22-5 (gnd). A 4mA signal produces a 0
°
F
offset. A 20mA signal produces the maximum allowed offset
(10 or 20
°
F above the Local Setpoint Value). The setpoint is
changed linearly between these extremes as the input varies
over the range of 4-20mA. This input will only be accepted
when
"Analog" Remote Mode is selected, the "Remote
Analog Input Range" setpoint is set for "2-10VDC" and
Microboard jumper JP24 has been placed on pins 1 and 2.
Calculate the setpoint for various inputs as follows:
OFFSET (F) = (mA-4)(Remote Temp. Reset Range)
16
SETPOINT (F) = Local Se Offset
For example, if input is 8mA, and the Remote Reset Temp.
Range Setpoint is programmed for 10
°
F and the Local Leav-
ing Liquid Temperature setpoint is programmed to 40
°
F, the
setpoint could be set to 42.5 ° F as follows:
OFFSET (
°
F) = (8-4)(10)
16
=(4)(10)
16
= 40
16
=2.5
°
F
SETPOINT ( ° F) = 40 + 2.5
= 42.5 ° F